Improvement in puddling-furnaces



JOHN HEATLEY, OF HARRISBURG, PENNSYLVANIA.

IMPROVEMENT IN PUDDLING-FURNACES.

I Specification formingpart of Letters Patent No. 139.788, dated June 10, 1873; application filed April 17, 1873.

To all whom it may concern:

Be it known that I, JOHN HEATLEY, of Harrisburg, in the county of Dauphin and State of Pennsylvania, have invented a new andImproved Puddling-Furnance; and I do "hereby declare the following to be a full, clear,

andexact description of the same, reference `being had tothe accompanying drawings forming part of `this specfication, in which- Figure 1 is a longitudinal vertical central sxiection. Fig. 2 is an end view with parts broken o The invention relates to puddling-furnaces and consists in certain improvements which will be first, fully described, in connection with all that is necessary to a full understand- Ving thereof, and then clearly pointed out in the claims.

` In the drawing, A represents an ordinary furnace, and B a melting-chamber, having i raised hearth e of the melting-stove E, which y has the charge-holes e1 and outow-holes e2. Ontop of the melting-stove E is an outer `flan ge e3 within which-is thus formed a water receptacle.

e4 e4 are `peep-holes, and e5 e5 are water-conduits, whose mouths are raised, and the latter of which lead through the stove into a water-pan F below the melting-chamberuf` i Around the bottom and convex side of bottom D are passed, fastenedgffA or on it cast, the metallic bars G, which arexalways sunk more or less in the Water of said pan, and

caused to raise the bottom above the water. i,

By this means the chill upon the metal is not communicated directly melted metal in bottom D, but the heat is absorbed from the metal graduallyT and carried by conduction through the bars Gr to the Water, which may be changed at intervals or caused to circulate therethrough continually. H H

or suddenly tothe attached at are doors which are caused toslide up and down over the holes b2 b2 of the melting-chamber by means of the straps 'It h, and the levers h1 h', which have their fulcrums on the frame. I is the detachable top ofnielting-chamber, having the downward llange t that its and rotates around a corresponding upward and inner lange b3 of the melting-chamber B, and a series of pendent fan-blades I that create an equable diffusion ofthe gases andhot-air as they come from the furnace. il is a series of holes arranged over the meltingstove, and intended to allow the plugs `to be inserted and taken from peep-holes e4 e4; and l2-i2 are slots in which are worked the stirrers JJ toenable them to be changed in position across the meltingchamber. J J are vibratory regulators placed on a hand-crank shaft, and within convenient reach, for the purpose of causing the stirrers to be moved with facility across from one side to the other of the melting-chamberB. These stirrers are pivoted in the, recess of a block, 7', which is journaled in two parallel arc-slots, k k, at opposite ends of the bar K. The latter slides up and down over thetop I that is made fast to the vertical shaft L, and turns therewith. The bar K is formed in two parts, attached together over the shaft, and the journals of stirrer-blocks by screws or other easily detachable fastenings, and may have cross-pins between the arc-slotted ends. They may also be made in two side-pieces with intermediate spacing-blocks. By this construction this bar can be easily removed and returned to its position. j j are metallic facin gs applied to the inside of slots 'i2 t2 for the purpose of lessenin g wear and of being easily removed and replaced after they are worn by friction out of the proper shape. i To the top of this bar K is made fast the collar M that surrounds the shaft, and in which is swiveled the disk N. This disk has ears n u in which spur-wheel driven by a corresponding bevelpinion on the hand-crank shaft q. R is a cord its ends to weights, and passing I are pivoted the lift-levers O O that -pass up through slots ofthe cross-bar P. Q is a bevel over pulleys SS so as to rotate the screw U, i which works in the nut V, toraise or lower the i bar w. Y Y are two cams journaled in bearings on the frame and having arms y y which are vibrated by a rod z so as to hold the bar m always in a horizontal position.

The operation is as follows: The iron being A charged through holes b2 b2 and el el into the stove E, which is protected by its internal and central position from all drafts of air, and around which all the hot products of combustion continually circulate, is soon disintegrated and passed out of hole d, while the the iron is melted and allowed to pass through holes c2 e2 into the concavity of melting-chamber. Here it is continually stirred bythe laterally as well as up and down adjustable stirrers J J while it is gradually chilled by the abstraction of its heat through the bars G into the water of pan. The iron is then removed in the usual or in any suitable manner. The stirrers J, being adjustable rapidly to any change of position, keep all the fused metal in motion and thereby tend to produce a simultaneous cooling of all parts of the metal while the indirect absorption of heat through they bars G tends to the same end. Certain kinds of m etal will not properly fuse unless their particles are put in motion at a certain temperature. These are therefore melted, stirred,`and cooled in the chamber B.

Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, isf l. The stove E placed in the center of melting-chamberB and provided with inlet and outlet openings thereinto and thereforom, as and for the purpose described.

2. The cover I of amelting-chamber, B, ar

\ ranged to rotate thereover, and thus to carry around therewith the stirrers, as a new and convenient means of applying said stirrers.

3. The bar K vertically movable on shaft and provided with arcslots at each end, in which the stirrers are moved as described, so as to give the double adjustment intended.

4. The combination, with the stirrer-bar K, of the collar M that surrounds shaft, the swiveled disk N, lift-levers O O, and slotted cross-bar P, as and for the purpose set forth.

5. The combination, with screw U, of cords, pulleys,and counter-balance weights, arranged as and for the purpose specilied.

6. The bar K, made in two or' more pieces, clamped together on shafts and journals of stirrer-blocks, as and for the purpose described.

7. The metallic facings j j applied tothe slots i2 t2 of the top I of melting-chamber, as and for the purpose described.

8. The combination, with rod z, of cams Y Y having the arms yy, and operated as and for the purpose described.

9. The revolving cover I having the series of pendent fan-blades I', as and for the purpose specified.

10. The vibratory regulators J J applied to the stirrers, as and for the purpose specifred.

The above specification of my inventionI have signed this 11th day of April, A. D.

. J OHN HEATLEY. Witnesses: SoLoN C. KnnoN, T. DURBIN D. OURAND. 

